Late Emsian/Eifelian Loc. 19b of Melo: Picos region, Upper Pimenteira Formation (Devonian to of Brazil)

Where: Piaui, Brazil (7.0° S, 42.0° W: paleocoordinates 80.7° S, 4.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Pimenteira Formation, Emsian to Emsian (407.6 - 387.7 Ma)

• "Although the age of the [Pimenteira Fm.] is probably restricted to the Middle Devonian along the eastern outcrop belt [of which this locality is a part] its full range is Emsian through Famennian in the subsurface of central portions of the basin."

• member-level stratigraphic resolution

Environment/lithology: marine; sandstone and siltstone

• See lithology description.
• "The Pimenteira Fm. records the first widespread Devonian transgression over the Parnaiba Basin and conformably overlies the Itaim Mbr. It consists of interlayered sandstones and siltstones/shales mostly deposited as offshore bars or shelf sediments under the influence of storm generated waves and currents ("tempestites"), as indicated by the widespread development of large scale hummocky cross stratification throughout the section."

Primary reference: J. H. G. Melo. 1988. The Malvinokaffric realm in the Devonian of Brazil. N. J. McMillan, A. F. Embry, and D. J. Glass, eds. Devonian of the World, Volume I. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 669-703 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 37128: authorized by Michael Foote, entered by Michael Foote on 03.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Phacopida - Calmoniidae
Metacryphaeus sp. Reed 1907 trilobite
 Phacopida - Homalonotidae
Burmeisteria sp. Salter 1865 trilobite
 Xiphosurida -
Eurypterida indet. Burmeister 1843 eurypterid
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
 Cyrtodontida - Praecardiidae
? Praecardium sp. Barrande 1881 clam
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
 Cardiidia - Grammysiidae
? Grammysia sp. de Verneuil 1847 clam
 Protobranchia - Solemyidae
"? Solemya (? Janeia) sp." = Janeia
"? Solemya (? Janeia) sp." = Janeia King 1850 Awning Clam
 Protobranchia - Malletiidae
Nuculites sp. Conrad 1841 clam
? Palaeoneilo sp. Hall and Whitfield 1869 clam
 Euomphalina - Platyceratidae
 Bellerophontida - Plectonotidae
Plectonotus sp. Clarke 1899 snail
 Ctenacanthiformes - Ctenacanthidae
? Ctenacanthus sp. Agassiz 1837 elasmobranch
Crinoidea indet. Miller 1821 Sea lily
 Productida -
"Chonetacea "gen.nov. B"" = Chonetoidea, "Chonetacea indet." = Chonetoidea
"Chonetacea "gen.nov. B"" = Chonetoidea Bronn 1862
"Chonetacea indet." = Chonetoidea Bronn 1862
 Terebratulida -
Terebratulida indet. Waagen 1883
"Rhipidothyrididae or Mutationellidae indet. A"
 Terebratulida - Meganterididae
 Lingulida - Lingulidae
"Lingula" sp. BruguiƩre 1797
 Conulariida - Conulariidae
Conularia sp. jellyfish
  - Rhyniaceae
Palaeostigma sp. Plumstead 1967
Archaeosigillaria sp. Grierson and Banks 1963
 Ichnofossils -
Cruziana sp. d'Orbigny 1842